netdev - [PATCH net 0/5] vxlan: Various fixes

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Message-ID: <cover.1545057865.git.petrm@mellanox.com>
Date:   Mon, 17 Dec 2018 14:58:41 +0000
From:   Petr Machata <petrm@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Ido Schimmel <idosch@...lanox.com>,
        "roopa@...ulusnetworks.com" <roopa@...ulusnetworks.com>
Subject: [PATCH net 0/5] vxlan: Various fixes

This patch set contains four fixes for the vxlan driver.

Patch #1 fixes handling of offload mark on replaced VXLAN FDB entries. A
way to trigger this is to replace the FDB entry with one that can not be
offloaded. A future patch set should make it possible to veto such FDB
changes. However the FDB might still fail to be offloaded due to another
issue, and the offload mark should reflect that.

Patches #2 and #3 fix problems in __vxlan_dev_create() when a call to
rtnl_configure_link() fails. These failures would be tricky to hit on a
real system, the most likely vector is through an error in vxlan_open().
However, with the abovementioned vetoing patchset, vetoing the created
entry would trigger the same problems (and be easier to reproduce).

Patch #4 fixes a problem in vxlan_changelink(). In situations where the
default remote configured in the FDB table (if any) does not exactly
match the remote address configured at the VXLAN device, changing the
remote address breaks the default FDB entry. Patch #5 is then a self
test for this issue.

Petr Machata (5):
  vxlan: Unmark offloaded bit on replaced FDB entries
  vxlan: Don't double-free default FDB entry in __vxlan_dev_create()
  vxlan: Don't notify about deletion of non-added default FDB entry
  vxlan: changelink: Fix handling of default remotes
  selftests: net: Add test_vxlan_fdb_changelink.sh

 drivers/net/vxlan.c                                | 26 ++++++++++---------
 include/net/vxlan.h                                |  1 +
 tools/testing/selftests/net/Makefile               |  1 +
 .../selftests/net/test_vxlan_fdb_changelink.sh     | 29 ++++++++++++++++++++++
 4 files changed, 45 insertions(+), 12 deletions(-)
 create mode 100755 tools/testing/selftests/net/test_vxlan_fdb_changelink.sh

-- 
2.4.11